Sylvania



To all whom 'it 'may conce/rn i sind wa-aww veis@ ADAM SHOEMAKER AND JOI-INR.V GEARHART, 0F MARION, PENN- SYLVANIA.

Letters Patent No. 86,703, dated Februar/y 9, 1869.

Ennvn'ron -song -The Schedule referred to n these Letters Patent and making part of the same embracing our improvements.

In hoisting and dumping-apparatus, the great desideratum is that they shall beautomatic in all their,

movements; that is to say, Vthe operatingpower,whether it be hand, horse,steain,'cr any' other, being continuously in motion, the bucket, fork, or other receptacle may remain at rest, in position to receive its load, until the elevator is thrown into gear with the operatingpower, at the will of the attendant. This being done', the movementsof the apparatus should be such as, 'at the proper elevation, to automatically release the carriage from its retained-and on arriving at its destinaA tion, to simultaneously dump the load, and throw the elevator out of gear with its driving-power, and allow it to return to its original position for another load, and repetition of the same operation.

To accomplish this result is the object of our invention, which consists in a novel arrangement and combination of devices for releasing the carriage or traveller from its retainer; also, in .the device for sustainingthe weightrof the ioad when elevated, and releasing it when in proper position to allow it to descend for another load; in the means of throwing the elevator out of gear with its operating-power; and in a novel device for dumping the load at its `desired destination.

To enable others to make -and use our apparatus, We will now describe its construction and operation.

Referring to the drawingsv A represents the foundation or bed-piece of the apparatus, on which are erected two standards B, witha horizontal timber, C, extending from one to the other at their upper ends, or this horizontal timber C may be sustained by the walls or frame-work of the building, so as to form a railway from the hoisting to the dumping-positions, for the car D to traverse.

The car D is sustained upon the timber C, by two friction-rollers a, and carries -beneath the timber, a pulley, b, hinged lever c, r`od or yoke d, and double spring-clamp-.a'the uses and operation of which'will hereinafter appear.

On the upper side of the timber C, is hinged a catch, E, which hooks on to a similar catch on the upper side of the car D, to retain it in position whilst the load is being elevated.

F is a vertical lever, having its lfulcrum on any suitable bearing, as at f, and is connected withany suitable shifting-device at its lower end, for throwing the apparatus in or out of gear with its driving or'operatingpower, and at its upper end is adjustably attached an arm, Gr, carrying a forked slide, H, which spans and slides on the timber C.

The elevating-rope or chain I is attached to the under side of the car D, as at g, passes downward and around a pulley, 71., attached to the bail Ai of the bucket K, and up over the pulley l1, thence horizontally beneath the timber C, around the pulley l,- and down. under the pulley m, to the drum L of the horse-power, where it is rigidly attached.`

The baili is piv'otcd to the bucket K, on its opposite sides, as shown at i', near its bottom, and has attached to it a spring-catch, In, which, falling into a notch in the side of the bucket, secm'es the bail in a verticalposition with relation thereto; and to the upper end of this spring-catch is attached a cord to be retained in the hand of the operator, or made fast at a xed point, with a given length of cord, so as to release the bucket from its hold, on arriving at its dumping-position, and thus deposit its load, as will be more fully explained.

In the drawing is represented a horse-power as the t means of operating the apparatus, and which consists of a vertical arbor, M, supportedin bearings, N, and having attached to its upper end a dranght-beam, 0, and on the arbor is a loose drumli, hung so ,that when out of gear, the arbor may revolve freely therein; but having a sliding motion up-and down on said arbor, caused by the action of a wedge-shaped fork, p, spanning the arbor beneath the drum, so that by forcing inward said wedge, the drum is lifted until the stub q on its upper surface is brought in contact with a pin, r, passing horizontally through said arbor, and by which the drum is caused to rotate, and wind the rope I around it, said, rope being guided by a vertical roller, S.

The operation will then be ais-follows:

The attendant being stationed near thebucket or other carrier, ills the same, and then, by means of the cord pulling on the top ofthe lever F, forces the wedge 1) under the drum L, which then being rotated, winds the rope I thereon, and elevates the load until the collar q', above the pulley h, comes in contact with the hinged lever c, and lifts it, raising with it the rod or stirrup'd, which strikes the under side of the hook E, and pushes it out of gear. The carD then travels along the timber C, in direction of the arrow, when the jaws e are immediately released from their opening-wedge o, and close beneath the head x, over the pulley h,and thus prevent it from lowering the car. Then by the contieued winding of the rope I onthe drum L, -it travels on the timber until it comes in contact with the sliding fork H, pushing it along until, through the lever E, the wedge p is withdrawn, and the drum ceases to rotate, at which time the line z becoming taut, or being pulled by the operator, withdraws the spring-catch n iom the side of the bucket, which immediately capsi'zes, dumping the load. The bucket then being lightened, the weight Y w, attached to the car, is sufficient to overcome the friction, and draw it back to its normal position, when, in coming 1n contact with the block P at the end of the timber C, the hook E is lifted, and at the same time the jaws e are opened by the dividing-wedge t, which releases the head x, and allows the bucket to run down, the hin-ged lever c drops, and the hook E falls into the notchrin the upper side of the car D, and retains it in position for a repetition of the same operation.

What is here claimed, and desired to be secured by Letters Patent, is-

' l.A The combination ofthe hinged lever c and stirrup d with the car D and hook E, operated by the flange or projection q .on the block R, all constructed and arranged substantially as shown and described.

catch n., with the bail t and bucket K, substantially as shown and described.

1 ADAM ,SHOEMAKEK JOHN R. GEARHART. Witnesses:

C. LONG,

W. MORRIS SMTH,

SYDNEY E. SMITH. 

